West Ham know that the door is opening for them to potentially complete a historic £120m off-pitch deal. This summer will be one of transition for the Hammers, who are under new management in the form of Julen Lopetegui. And there are also significant goings on behind the scenes that could have a real impact on their financial position for years to come. Besides the GSB regime’s hunt for investment, which has seen Karren Brady jet out to the Middle East to search for suitors, a significant catalyst for change will involve West Ham’s 68,000-seater home ground. Behind-scenes change could pave wa…